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Security
Malware Analysis
Three Misconceptions Surrounding Firewalls
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<blockquote data-quote="hjlbx" data-source="post: 506818"><p>Outbound notification is still a valid method to detect presence of unknown\untrusted process, process abuse or connection to malicious URL (if you check remote IP address before connecting).</p><p></p><p>For example, malicious *.js file can use wscript.exe or cscript.exe to connect to network and download malware. Firewall alert for either wscript.exe or cscript.exe will let user know that something unusual is happening on system - because wscript.exe and cscript.exe normally never connect to the internet during typical use.</p><p></p><p>The above is just one example.</p><p></p><p>However, more sophisticated malware can bypass firewall detection through various means.</p><p></p><p>Outbound notification is a last-ditch defense strategy.</p></blockquote><p></p>
[QUOTE="hjlbx, post: 506818"] Outbound notification is still a valid method to detect presence of unknown\untrusted process, process abuse or connection to malicious URL (if you check remote IP address before connecting). For example, malicious *.js file can use wscript.exe or cscript.exe to connect to network and download malware. Firewall alert for either wscript.exe or cscript.exe will let user know that something unusual is happening on system - because wscript.exe and cscript.exe normally never connect to the internet during typical use. The above is just one example. However, more sophisticated malware can bypass firewall detection through various means. Outbound notification is a last-ditch defense strategy. [/QUOTE]
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